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49906944 = 283221661
BaseRepresentation
bin1011111001100…
…0010100000000
310110220112110100
42332120110000
5100234010234
64541402400
71144126203
oct276302400
9113815410
1049906944
112619790a
1214869400
13a454c49
1468b193a
1545ac399
hex2f98500

49906944 has 54 divisors (see below), whose sum is σ = 143900666. Its totient is φ = 16634880.

The previous prime is 49906943. The next prime is 49906957. The reversal of 49906944 is 44960994.

It can be written as a sum of positive squares in only one way, i.e., 38937600 + 10969344 = 6240^2 + 3312^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 49906944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49906943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8527 + ... + 13134.

Almost surely, 249906944 is an apocalyptic number.

It is an amenable number.

49906944 is an abundant number, since it is smaller than the sum of its proper divisors (93993722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49906944 is a wasteful number, since it uses less digits than its factorization.

49906944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21683 (or 21666 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 49906944 is about 7064.4846945832. The cubic root of 49906944 is about 368.1744604424.

The spelling of 49906944 in words is "forty-nine million, nine hundred six thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 576 768 1152 2304 21661 43322 64983 86644 129966 173288 194949 259932 346576 389898 519864 693152 779796 1039728 1386304 1559592 2079456 2772608 3119184 4158912 5545216 6238368 8317824 12476736 16635648 24953472 49906944